A Free Pass (without blockchain address) is a pass to a specific CLUB on the OURSONG site.
You can start making a Free Pass from the CLUB settings page, and its ownership is recorded in the OURSONG database. The only difference between Free Pass and a digital collectible (i.e your creation) is that a digital collectible has a blockchain address, but Free Pass does not, so the cost of making Free Pass is free.
Learn more: How to create a "Free Pass" for club?